September is a popular month to ask about Frenchman's Bay Jamaica because conditions can shift week to week along this coast. Expect the water near 29.0°C, with daily variation from wind, tides and recent storms. We refresh the live value from Open-Meteo Marine every hour, so the headline above always reflects the current state of the Caribbean Sea.
Frenchman's Bay Jamaica sea temperature in September — averages 29.0°C
The sea at Frenchman's Bay Jamaica in Jamaica averages 29.0°C during September, based on long-run climatology for the Caribbean Sea. Use the live reading below for today's actual water and the monthly grid to compare with the rest of the year.
Average sea · September
29.0°C
tropical · Excellent
Live water now
…
Recommended wetsuit
No wetsuit
At 29.0°C the water is warm enough to swim and surf in just a swimsuit or boardshorts.
Monthly comparison
Yes — ideal swimming weather · Frenchman's Bay Jamaica
Can you swim at Frenchman's Bay Jamaica in July? — 29.0°C water29.0°CCan you swim at Frenchman's Bay Jamaica in August? — 29.0°C water29.0°CCan you swim at Frenchman's Bay Jamaica in September? — 29.0°C water29.0°CCan you swim at Frenchman's Bay Jamaica in October? — 29.0°C water29.0°CCan you swim at Frenchman's Bay Jamaica in November? — 28.0°C water28.0°CCan you swim at Frenchman's Bay Jamaica in December? — 27.0°C water27.0°C
Frequently asked questions
What is the average sea temperature at Frenchman's Bay Jamaica in September?
Frenchman's Bay Jamaica averages 29.0°C in September, based on long-run climatology for the Caribbean Sea.
Is the sea warm enough to swim at Frenchman's Bay Jamaica in September?
Yes, most swimmers find 29.0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Frenchman's Bay Jamaica in September?
No wetsuit needed.